JP7053502B2 - 無線周波数用途のための構造 - Google Patents
無線周波数用途のための構造 Download PDFInfo
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- JP7053502B2 JP7053502B2 JP2018564318A JP2018564318A JP7053502B2 JP 7053502 B2 JP7053502 B2 JP 7053502B2 JP 2018564318 A JP2018564318 A JP 2018564318A JP 2018564318 A JP2018564318 A JP 2018564318A JP 7053502 B2 JP7053502 B2 JP 7053502B2
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- 239000000758 substrate Substances 0.000 claims description 209
- 239000000463 material Substances 0.000 claims description 171
- 229910052710 silicon Inorganic materials 0.000 claims description 34
- 239000010703 silicon Substances 0.000 claims description 34
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 23
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 22
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 20
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 19
- 239000004065 semiconductor Substances 0.000 claims description 18
- 238000004377 microelectronic Methods 0.000 claims description 14
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 13
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 238000005530 etching Methods 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 111
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 10
- 239000007789 gas Substances 0.000 description 9
- 230000002829 reductive effect Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 229920005591 polysilicon Polymers 0.000 description 6
- 235000012239 silicon dioxide Nutrition 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000003071 parasitic effect Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000000969 carrier Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000005672 electromagnetic field Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000000873 masking effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000407 epitaxy Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 229910052594 sapphire Inorganic materials 0.000 description 3
- 239000010980 sapphire Substances 0.000 description 3
- WSMQKESQZFQMFW-UHFFFAOYSA-N 5-methyl-pyrazole-3-carboxylic acid Chemical compound CC1=CC(C(O)=O)=NN1 WSMQKESQZFQMFW-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 230000000699 topical effect Effects 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- -1 vapor Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000005234 chemical deposition Methods 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000013626 chemical specie Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000003949 trap density measurement Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/7624—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
- H01L21/76264—SOI together with lateral isolation, e.g. using local oxidation of silicon, or dielectric or polycristalline material refilled trench or air gap isolation regions, e.g. completely isolated semiconductor islands
- H01L21/76283—Lateral isolation by refilling of trenches with dielectric material
-
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/84—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being other than a semiconductor body, e.g. being an insulating body
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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- H01L21/02002—Preparing wafers
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/76224—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials
-
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/7624—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
- H01L21/76251—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using bonding techniques
- H01L21/76254—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using bonding techniques with separation/delamination along an ion implanted layer, e.g. Smart-cut, Unibond
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/7624—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
- H01L21/76264—SOI together with lateral isolation, e.g. using local oxidation of silicon, or dielectric or polycristalline material refilled trench or air gap isolation regions, e.g. completely isolated semiconductor islands
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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1203—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body the substrate comprising an insulating body on a semiconductor body, e.g. SOI
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- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1218—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition or structure of the substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/0603—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions
- H01L29/0642—Isolation within the component, i.e. internal isolation
- H01L29/0649—Dielectric regions, e.g. SiO2 regions, air gaps
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78603—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the insulating substrate or support
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- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Semiconductor Integrated Circuits (AREA)
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Description
- 特にデバイスの使用範囲内[-40℃;150℃]での温度性能の安定性
- 通常は20W/mKより大きい熱伝導率による、十分な熱放散能力
- 通常はシリコンの誘電体誘電率(εsilicon=11)以下の誘電体誘電率による、活性層と支持基板との間の弱い容量結合 さらに、大容量要件を満たすために、基板は、半導体業界、特にCMOSシリコン製造ラインと互換性がなければならない。もちろん、それはまた、特に電気通信の分野の消費者用途(テレフォニーおよびセルラネットワーク、WiFi接続性、Bluetooth)によって採用されるように、競争力のあるコストを有さなければならない。宇宙および軍事用途は特に性能および耐熱性に敏感である。
・500Ω・cmより大きい抵抗率を有する第1の半導体材料から作製された支持基板と、
・第2の材料で充填され、支持基板の第1の面上の第1の材料の複数の第1のゾーンと第2の材料の少なくとも1つの第2のゾーンとを画定する、支持基板内の複数のトレンチと
を備える超小型電子無線周波数デバイス用の基板に関する。
・第2の材料が10kΩ・cmより大きい抵抗率を有し、
・第1のゾーンが10μm未満の最大寸法を有し、第2のゾーンによって互いに分離される
という点で注目に値する。
・トレンチ深さが1μmから100μmの間である。
・支持基板を構成する第1の材料がシリコンである。
・トレンチを充填する第2の材料が、酸化シリコン、窒化シリコン、シリコン窒化酸化物、窒化アルミニウム、アモルファスもしくは多結晶シリコン、カーボンリッチシリコン、ポリマー、さらにはガスの中から選ばれる。
・複数のトレンチが、第2の材料で部分的に充填され、第2の材料とは異なる性質または組成の第3の材料で部分的に充填される。
・第3の材料が、酸化シリコン、窒化シリコン、シリコン窒化酸化物、窒化アルミニウム、アモルファスもしくは多結晶シリコン、カーボンリッチシリコン、カーボンリッチシリコン、ポリマー、さらにはガスの中から選ばれる。
・第2または第3の材料が、第1の材料で生成され得る移動可能な電荷をトラップする特性を有する。
・基板が、誘電体層と支持基板の第1の面との間に、第3の材料から構成された追加の層を備える。
・誘電体層が、酸化シリコン、窒化シリコン、シリコン窒化酸化物、窒化アルミニウムから選ばれた材料から構成される。
・誘電体層が第2の材料から構成される。
・基板が、支持基板の第1の面上に配置された有用な層を備える。
・誘電体層が、有用な層と支持基板の第1の面との間に挟まれる。
・有用な層が、半導体材料、絶縁材料、または導電性材料、あるいは圧電材料から選ばれた材料から構成される。
・上記などの基板
・基板上に配置された超小型電子デバイスの層
を備える無線周波数超小型電子デバイスの構造に関する。
・500Ω・cmより大きい抵抗率を有する第1の半導体材料から作製された支持基板を設けること、
・支持基板の第1の面から決定された深さまで延びる複数のトレンチをマスクに従ってエッチングすること、
・第2の材料で複数のトレンチを充填し、第1の材料の第1のエリアおよび第2の材料の少なくとも1つの第2のゾーンを第1の面上に形成すること
を含む、超小型電子無線周波数デバイス用の基板に関する。
・500Ω・cmより大きい抵抗率を有する第1の半導体材料から作製された支持基板を設けること、
・支持基板上の、第1の材料から形成され、所与の高さの複数のピラーの、マスクによる局所的被覆であって、ピラーの上面が基板の第1の面を画定し、ピラーが、基板の第1の面から、ピラーの決定された高さによって画定される深さまで延びる複数のトレンチによって互いに絶縁される局所的被覆、
・複数のトレンチを第2の材料で充填して、第1の面上の第1の材料の第1のエリアと、第2の材料の少なくとも1つの第2のゾーンとを形成すること
を含む、超小型電子無線周波数デバイス用の基板に関する。
○有用な層40と、
○誘電体層30と、
○基板100であって、第1の材料10’から作製された支持基板10と、
・第2の材料20で充填されるトレンチ2(図6(a))、
・その壁が第3の材料23と並べられ、第2の材料20で充填されるトレンチ2(図6(b))、
・その壁が第3の材料23と並べられ、第2の材料20で充填されるトレンチ2であって、追加の層24が、支持基板10の第1の面と誘電体層30との間に挟まれるトレンチ2(図6(c))と
を備える基板100と
を備える、本発明による基板102を示す。
・前述のような基板100、101、または102
・基板100、101上に直接的に配置され、または基板100、101上にそれ自体が配置される誘電体層30上に配置された超小型電子デバイス50の層と
を備える超小型電子無線周波数デバイスの構造110(図7に示される)に関する。
Claims (18)
- 500Ω・cmより大きい抵抗率を有する第1の半導体材料(10’)から作製された支持基板(10)と、
第2の材料(20)で充填され、第1の材料(10’)の第1の面(1)上の複数の第1のゾーン(11)と第2の材料(20)の少なくとも1つの第2のゾーン(21)とを画定する、前記支持基板(10)内の複数のトレンチ(2)と
を備える超小型電子無線周波数デバイス用の基板(100、101、102)において、
前記第2の材料は10kΩ・cmより大きい抵抗率を有し、
前記第1のゾーン(11)は10μm未満の最大寸法を有し、前記第2のゾーン(21)によって互いに分離されることを特徴とする超小型電子無線周波数デバイス用の基板(100、101、102)。 - 前記第1のゾーン(11)および前記第2のゾーン(21)の表面密度は、前記支持基板(10)の前記第1の面(1)から前記トレンチ(2)の深さまで延びる前記基板の上側部分(200)上で、20W/m・Kより大きい平均熱伝導率、前記第1の材料(10’)の誘電率未満の平均誘電体誘電率、および前記第1の材料(10’)の前記抵抗率より高い抵抗率を与える請求項1に記載の超小型電子無線周波数デバイス用の基板(100、101、102)。
- 前記第2のゾーン(21)は、前記支持基板(10)の前記第1の面(1)上にメッシュを形成する請求項1または2に記載の超小型電子無線周波数デバイス用の基板(100、101、102)。
- 前記トレンチ(2)の深さは1μmから100μmの間である請求項1乃至3のいずれか一項に記載の超小型電子無線周波数デバイス用の基板(100、101、102)。
- 前記支持基板(10)を構成する前記第1の材料(10’)はシリコンである請求項1乃至4のいずれか一項に記載の超小型電子無線周波数デバイス用の基板(100、101、102)。
- 前記トレンチ(2)を充填する前記第2の材料(20)が、酸化シリコン、窒化シリコン、シリコン窒化酸化物、窒化アルミニウム、アモルファスもしくは多結晶シリコン、カーボンリッチシリコン、ポリマー、またはガスの中から選択される請求項1乃至5のいずれか一項に記載の超小型電子無線周波数デバイス用の基板(100、101、102)。
- 前記複数のトレンチ(2)が、前記第2の材料(20)で部分的に充填され、前記第2の材料(20)とは異なる組成の第3の材料で部分的に充填される請求項1乃至6のいずれか一項に記載の超小型電子無線周波数デバイス用の基板(100、101、102)。
- 前記第3の材料(23)が、酸化シリコン、窒化シリコン、シリコン窒化酸化物、窒化アルミニウム、アモルファスもしくは多結晶シリコン、カーボンリッチシリコン、ポリマー、またはガスの中から選択される請求項7に記載の超小型電子無線周波数デバイス用の基板(100、101、102)。
- 前記支持基板(10)の第1の面(1)上に配置された誘電体層(30)を備える請求項1乃至8のいずれか一項に記載の超小型電子無線周波数デバイス用の基板(100、101、102)。
- 誘電体層(30)と前記支持基板の前記第1の面(1)との間に、第3の材料から構成された追加の層(24)を備える請求項7乃至9のいずれか一項に記載の超小型電子無線周波数デバイス用の基板(100、101、102)。
- 前記誘電体層(30)が、酸化シリコン、窒化シリコン、シリコンの窒化酸化物、窒化アルミニウムから選択された材料から構成される請求項9または10に記載の超小型電子無線周波数デバイス用の基板(100、101、102)。
- 前記誘電体層(30)が前記第2の材料(20)から構成される請求項9乃至11のいずれか一項に記載の超小型電子無線周波数デバイス用の基板(100、101、102)。
- 前記支持基板(10)の前記第1の面(1)上に配置された有用な層(40)を備える請求項1乃至12のいずれか一項に記載の超小型電子無線周波数デバイス用の基板(100、101、102)。
- 誘電体層(30)が、有用な層(40)と前記支持基板(10)の前記第1の面(1)との間に挟まれる請求項9乃至13のいずれか一項に記載の超小型電子無線周波数デバイス用の基板(100、101、102)。
- 前記有用な層(40)が、半導体材料、絶縁材料、または導電性材料、さらには圧電材料の中から選択された材料から構成される請求項13または14に記載の超小型電子無線周波数デバイス用の基板(100、101、102)。
- 請求項1乃至15のいずれか一項に記載の基板(100、101、102)と、
基板(100、101、102)上に配置された超小型電子デバイスの層(50)と
を備える超小型電子無線周波数デバイス用の基板(110、102)。 - 前記超小型電子デバイスは、アンテナスイッチ、アダプタ、電力増幅器、低雑音増幅器、受動構成要素、高周波数で動作する他の回路、無線周波数MEMS構成要素、または無線周波数フィルタである請求項16に記載の超小型電子無線周波数デバイスの構造(110、111)。
- 第1の面(1)を有する、500Ω・cmより大きい抵抗率を有する第1の半導体材料から作製された支持基板を設けるステップと、
前記支持基板(10)の前記第1の面から決定された深さまで延びる複数のトレンチ(2)をマスクに従ってエッチングするステップと、
第2の材料(20)で前記複数のトレンチ(2)を充填し、第1の材料(10’)の第1のゾーン(11)および前記第2の材料(20)の前記第1の面(1)上の少なくとも1つの第2のゾーン(21)を形成するステップとを含む超小型電子無線周波数デバイス用の基板(100、101、102)を製造するための方法において、
その最大寸法が10μm未満である前記第1のゾーンが、前記第2の材料(20)が10kΩ・cmよりも大きい抵抗率を有する前記第2のゾーン(21)によって互いに絶縁されることを特徴とする超小型電子無線周波数デバイス用の基板(100、101、102)を製造するための方法。
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